Car-wheel.



No. 878,951. PATENTED FEB.11,1908.

M. HENDRICKS.

GAR WHEEL. I

APPLICATION FILED OCT. 5. 1906.

rHE NORRIS PETERS c0, WASHINGION. n, c

MURRAY HENDRICKS, OF BENWOOD, WEST VIRGINIA.

GAR-WHEEL.

Specification of Letters Patent.

Patented Feb. 11, 1908.

Application filed October 5. 1906. Serial No. 337.508.

To all whom it may concern:

Be it known that I, MURRAY HENDRICKS,

a citizen of the United States of America,

and resident of Benwood, county of Mar- 5 shall, and State of WestVirginia, have invented certain new and useful Improvements inCar-Wheels, of which the following is a specification.

My invention relates to new and useful improvements in car wheels, andit has for its object to provide a car-wheel having a braking surfaceremote from the tread portion of the wheel and from the lubricating boxcarried by the car axle.

As is well known, it frequently happens that oil from the lubricatingboxes, located on the car axles on the outer sides of the car wheels,drips upon the sides of the wheels and runs down upon the tread portionsthereof. In such cases the brakes have little effect when applied owingto the fact that the brake-shoes slide more or less freely over theoiled tread. Accidents frequently result when the tread portions of thewheels have been thus lubricated from the fact that the ordinary brakingpower applied fails to produce the desired or expected checking of thetrain s momentum.

The object of this invention is to provide a car Wheel by means of whichthe difficulties before mentioned are obviated, said wheel beingprovided with an extension on its inner side with a braking surface towhich the brake-shoe is applied and to which oil from said lubricatingbox cannot drain.

In describing the invention in detail, reference is herein had to theaccompanying drawings, forming a part of this specification, in whichl0Figure 1 is an edge view, partly in section,

of my improved car wheel, and Fig. 2 is a side elevation of the same.

Referring to said drawings, in which like reference-numerals designatelike parts =5 throughout the several views1 indicates the hub, 2 theweb, 3 the tread portion, and 4 the flange of the car wheel, all saidparts being integral. On the inner side of the wheel is an integralannular braking rim 5 of 0 a diameter slightly less than that of thetread portion, said rim 5 being supported or strengthened by a web 6which connects it to an extension 7 of the hub 1, as shown. A circularhollow core 8 is formed between the webs 2 and 6, and sand-holes 9 areprovided in the web 6 to communicate with said core for a purpose wellunderstood by those familiar with metal casting.

The annular face 10 of the rim 5 is adapted to be engaged by thebrake-shoe; and, since the flange 4 serves to prevent oil from passingto the rim 5 from the outer side of the wheel, the annular face 10 is atall times in condition forgiving full eflect to the braking power aplied.

n order to guard against the rim 5 engaging switch-rails, which aresometimes elevated above the track rails 11, also to avoid derailingcontact with elevations or obstacles on the inner side of the trackrails, said rim is made of a slightly less diameter than the treadportion of the wheel, as shown, and at the same time approximates thediameter of said tread portion so closely as to aflect but little thebraking power of an application of the brakes.

The web 2 stands vertical, as shown, and is so ositioned that itscentral line is substantia y coincident with the central line ofpressure on the bearing face of the rail, thus giving the maximum amountof strength to said web.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A homogeneous car wheel comprising a hub, a tread portion, a webconnecting said hub and said tread portion, the median line of said webbeing substantially coincident with the central line of pressure on thebearing face of the rail, a guard flange, an annular rim on the side ofthe flange opposite to the tread portion, said rim having an annularface adapted for receiving the pressure of the brake-shoe, and a webconnecting said rim and said hub.

2. A homogeneous one-piece hollow car wheel, comprising a hub, a treadportion, a vertical'web connecting said hub and said tread portion, themedian line of said web being substantially coineident'with the-centralrim and said extensiomsaid second Web beline of pressure on thebearing-face of the inglocatedcentra'lly withregiot tovsa'id rim. 10

rail, a guard flange, an annular rim on In testimony whereof I a mysignature side of the flange opposite to the treadporimpresenee-eftwosubscribing Witnesses.

5 tion, said rim being smaller than, but ap- MURRAY HENDRICKS.

proximating, the tread portion in diameter; Witnesses: an integralextension carried by said hub, Y H. E. DUNLAP,

and a second. vertical Web connecting said R0311; F. DILWORTH.

